[Solution] Fixing Touchwiz unexpected stop error
Seems many people can get this problem "Touchwiz home has stopped unexpectedly" when traversing from home screen to app and so on. Changing to simple mode, using ADB and factory reset are the current solutions but I fixed my error in a much simpler way.
Settings > Manage apps > All > Touchwiz > Clear data.
It reset my home screen and apps/widgets to stock positions annoyingly, but no more error.
However if there's a particular app which caused the error, delete it. Agenda Calendar messed mine up.
I hope this works for other people.